Cord



Dec. 13, 1960 o. M. NOREHAD CORD Filed July 19, 1957 United StatesPatent Ofiice 2,963,716 Patented Dec. 13, 1960 CORD Onnig M. Norehad,Chicago, Ill. (321 Ashland Ave., Evanston, Ill.)

Filed July 19, 1957, Ser. No. 672,895

1 Claim. (Cl. -360) This invention relates to cords and particularly tocords useable as edging for cushions, mattresses, slip covers and thelike as well as to cords useable as gaskets.

One purpose of the invention is to provide a cord which shall bewater-proof.

Another purpose of the invention is to provide a cord which shall haveand maintain a smooth outer surface.

Another purpose is to provide a cord which shall be economical tomanufacture.

Another purpose is to provide a cord which may be manufactured with aminimum of effort and separate operations.

Another purpose is to provide a cord which may be utilized, for example,as a gasket in food and chemical containers without contamination ordeterioration as a result of the contact of the contents of saidcontainers with air or other deleterious substance.

Another purpose is to provide a cord having a core and a cover thereforeffective to protect the core from datruction and deterioration.

Cords formed entirely of paper are known in the art and have achievedwide useage because of their economy in manufacture.

When used in connection with the edging of cushions, mattresses, slipcovers and the like however, the same cannot be cleaned with waterwithout adverse efiect upon the shape, resiliency and strength of suchpaper cords. Similarly, when such paper cords are employed in gasketsused in food and chemical containers, the same are often injuriouslyaflected by contact with the contents of such containers. In the past,in an effort to maintain compression of such paper cords and to providesome rewiliency as well as to attempt to maintain the cylindricalconfiguration thereof, such cords have had wound therearound a lacing ofindividual strands of yarn. The necessity for employment of glue or war;to insure retention of the open-meshed, laced cover or binder undulycomplicates the manufacturing process as well as the employment of theresulting cord. It is accordingly a further purpose of my invention toprovide a cord of maximum simplicity in manufacture and yet capable ofavoiding the undesirable features set forth above.

Other purposes will appear from time to time during the course of thespecification and claim.

I illustrate my invention more or less diagrammatically in theaccompanying drawings wherein- Figure 1 is a perspective view;

Figure 2 is a cross-section of the cord illustrated in Figure 1;

Figure 3 is a cross-section view of a variant form of my invention;

Figure 4 is a cross-section view of another variant form of myinvention.

Like parts are indicated by like numerals throughout the specificationand claim.

Referring now to Figure 1, I illustrate a core 1 which may, asillustrated, be formed of twisted paper known generally as crepe paperor cellulose wadding. The

twisting of the core 1 provides a compression of the material of thecore while retaining its cylindrical configuration. Similarly, thematerial of the core 1 may be twisted over an indefinite length and heldin twisted condition for the application of a cover indicated at 2. Thecore 1 may be formed of synthetic fibers such as those known as nylon orrayon," for example, without departing from the nature and scope of myinvention. Such synthetic fibers may be interwoven or interwound to formlengths of yarn later twisted, braided, or compressed into the form ofthe core 1.

The cover 2 is formed of polyethylene sheet material, or other materialhaving the properties thereof, and is wrapped about the core 1 with itsopposed longitudinal edges 3, 4 overlapping a short distance as bestseen in Figure 2. The edges 3, 4 are bound together or heatsealed by anysuitable heat-sealing apparatus (not shown). It will be understood thatthe edges 3, 4 are overlapped and that the heating apparatus is appliedto the outer surface of the overlapped edge 3, the heat penetratingsufiiciently to combine the edges 3, 4 together.

In Figure 3, the cover 2 is of somewhat greater lateral width than thatshown in Figures 1 and 2 to provide a pair of end flanges 5, 6. Theflanges 5, 6 are placed in the abutting relationship shown in Figure 3and heatsealing apparatus (not shown) is then applied thereto to sealthe flanges 5, 6 together along their entire surface, the inner edgesthereof being in contact with the core 1. The heating apparatus may beapplied to both flanges 5, 6 or to one of said flanges with a butt plateor similar device applied to the opposite flange,

In Figure 4, a core 7 is formed of cellulose crepe wadding which iscompressed as a result of lateral pressure applied thereto.

Whereas I have described and illustrated a practical and operativedevice, nevertheless, many changes may' be made in the size, shape,number and disposition of parts without departing from the spirit of myinvention. I, therefore, wish my description and drawings to be takenas, in a broad sense, illustrative or diagrammatic, rather than aslimiting me to my precise showing.

For example, Whereas I have found polyethylene material to be preferableas a cover, it will be understood that a suitable heat-sealable orthermo-plastic film having the general properties of polyethylene may beemployed.

I claim:

A cord including a cylindrical hollow cover formed of a polyethylenefilm, said film having its longitudinal edges placed one upon the otherin overlapping relationship to form a small longitudinal area of doublethickness, said two longitudinal overlapping edges being heat-sealedtogether along their entire length, and a cylindrical core formed ofcompressed sy'nthetic fibers completely filling and enclosed by saidcylindrical hollow cover.

References Cited in the file of this patent UNITED STATES PATENTS1,675,844 Dennis July 3, 1928 1,926,500 Sackner Sept. 12, 1933 2,054,354Alderfer Sept. 15, 1936 2,107,467 Buhler Feb. 8, 1938 2,164,702 DavidsonJuly 4, 1939 2,299,955 Spraragen Oct. 27, 1942 2,378,034 Perryman June12, 1945 2,448,173 Cowan Aug. 31, 1948 2,520,737 Romeyn et a1 Aug. 29,1950 2,597,918 Boersma et al May 27, 1952 2,671,041 Dodge ---J-- Mar. 2,1954

